"""应用包初始化
"""
from flask import Flask, render_template
from flask_bootstrap import Bootstrap
from flask_moment import Moment
from flask_sqlalchemy import SQLAlchemy
from config import config
from flask_environments import Environments
from flask_login import LoginManager
from flask_mail import Mail

bootstrap = Bootstrap()
moment = Moment()
db = SQLAlchemy()
mail = Mail()
login_manager = LoginManager()
login_manager.login_view = "auth.login"


def create_app(config_name):
    app = Flask(__name__)
    env = Environments(app)
    env.from_object(config[config_name])
    config[config_name].init_app(app)
    bootstrap.init_app(app)
    moment.init_app(app)
    db.init_app(app)
    mail.init_app(app)
    login_manager.init_app(app)
    from .main import main as main_blueprint
    app.register_blueprint(main_blueprint)
    from .auth import auth as auth_blueprint
    app.register_blueprint(auth_blueprint, url_prefix="/auth")
    return app
